Question

Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements

Answer 1

1. As halogen elements have seven valence electrons, they only require one additional electron to form a full octet. This characteristic makes them more reactive than other non-metal groups.

2. The halogens become darker as you go down the group..

3. Elements of halogens have all types of physical states like chlorine is a gas, bromine is a liquid, and iodine is a solid.

Answer 2

Explanation:

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